Where does this definition of concave grating come from?
This entry for concave grating is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Does concave grating appear elsewhere on Lughet?
Yes — concave grating appears under other sources or language pairs in Lughet's collection. See the list below.
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.